21298288

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121013}}^1$

素因数の和:121032

約数の個数: 20

約数和(自身を含む): 45017208

約数和(自身を除く): 23718920

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121013, 242026, 484052, 968104, 1331143, 1936208, 2662286, 5324572, 10649144, 21298288]

約数ペア:

[(1, 21298288), (2, 10649144), (4, 5324572), (8, 2662286), (11, 1936208), (16, 1331143), (22, 968104), (44, 484052), (88, 242026), (176, 121013)]